Merge "bluetooth.audio@2.1: add handle IsSessionReady for LE offload encoder" am: 05e6b870a4 am: b358dd9da1 am: 99526e0378 am: 78cfb5d0e7

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1729161

Change-Id: I59d5a9fa9a4bdf248fc5f07c906d31c91de8c950